Hitachi U-5100 Instruction Manual page 277

Ratio beam spectrophotometer
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5.1.1 Wavelength Accuracy
(1)
Display the screen for each item of instrument performance
check (Fig. 5-3). For display method, follow the procedure
starting from section 5.1.. Using the [▲]/[▼] key, move
the cursor to the measuring wavelength in any of WL
Accuracy (484.6nm), (229.0nm) and (822.8nm), and then
select [1] Yes. The accuracy at the selected wavelength
will be checked. If check is not desired actually, select [2]
No.
Performance
WL Accuracy (484.6 nm)
WL Accuracy (229.0 nm)
WL Accuracy (822.8 nm)
WL Repeatability
Noise Level (RMS)
Baseline Flatness
Baseline Stability
Hardware
Print Report
Execute(Manual)? ::_
[1]Yes [2]No
Fig. 5-3 Screen for Each Item of Instrument
Performance Check
(2)
The guidance for informing the parameter setting process
(Fig. 5-4) appears, and parameters will be set and
wavelength accuracy will be checked.
Setting PARAM....
Fig. 5-4 Guidance for Parameter Setting Process
(3)
After the check of wavelength accuracy, the screen after
this check is displayed as shown in Fig. 5-5.
Measurement result is indicated on the wavelength
accuracy line; a peak difference at each wavelength of
bright line and OK when the judgment standard is met or
NG if not met. If NG is indicated, carry out wavelength
calibration by the method instructed in section 5.3.1, and
then check the wavelength accuracy again in the correct
procedure. If NG recurs, refer to section 6.8.
5 - 3
5.1.1
CELL A

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